../ dmsp_08_ephemeris_19911121.txt 22-Jun-2023 15:41 109513 dmsp_09_ephemeris_19911121.txt 22-Jun-2023 15:41 109341 dmsp_10_ephemeris_19911121.txt 22-Jun-2023 15:41 109526 dmsp_11_ephemeris_19911121.txt 22-Jun-2023 15:41 243